Segment:
Heavy-duty agricultural tractor
Target User:
Farm owners, mechanics, technicians, tractor enthusiasts
Competitors:
Massey Ferguson, John Deere, Ford, International Harvester of the same era
Utility:
Versatile tractor suitable for a wide range of agricultural tasks
Manual Benefit:
Empowers users to perform detailed repairs and maintenance, saving significant costs and downtime
Primary Coverage:
Service and Repair
Secondary Coverage:
Maintenance, Troubleshooting, Diagnostics, Wiring Diagrams
Estimated Pages:
High volume, likely several hundred pages (typical for factory service manuals)
Type:
Factory Service Repair Manual (FSM) / Workshop Manual
Engine:
Complete engine overhaul, diagnostics, fuel system, lubrication, cooling system, exhaust system
Transmission:
Gearbox overhaul, clutch, PTO, hydraulic systems, drivetrain
Electrical System:
Wiring diagrams, starter, alternator, lighting, battery, ignition system (if applicable)
Hydraulics:
Hydraulic pump, cylinders, control valves, filtration, hydraulic circuits
Chassis And Body:
Front axle, steering, brakes, rear axle, hitch, fenders, operator station
Maintenance:
Scheduled maintenance, lubrication, filter changes, fluid checks
Troubleshooting:
Systematic diagnostic procedures for common and uncommon faults
Repair:
Step-by-step instructions for disassembly, repair, and reassembly of all major components
Diagnostics:
Fault finding guides, testing procedures, specifications for performance verification
Calibration And Adjustment:
Engine timing, hydraulic pressures, brake adjustments, clutch settings
Depth:
Comprehensive, covering basic to advanced repair and overhaul procedures
Diagnostics Focus:
Detailed troubleshooting trees and symptom-based diagnostics
Rebuild Capability:
Full engine, transmission, and hydraulic system rebuild instructions
Engine Manufacturer:
Perkins (common for David Brown tractors of this era)
Engine Model:
Likely a 4-cylinder diesel, e.g., Perkins 4.248 or similar
Displacement:
Typically around 250-260 cubic inches (e.g., 4.248 Liters)
Horsepower Pto:
Estimated 65-75 PTO horsepower (specifics vary)
Torque:
Refer to manual for specific torque figures
Injection System:
Likely a mechanical injection system, e.g., CAV or Simms
Gearbox Type:
Manual gearbox with multiple forward and reverse gears (e.g., 12-speed or 16-speed options)
Optional Features:
Power Take-Off (PTO) - 540/1000 RPM, Differential Lock
Hydraulic Transmission:
Hydraulic systems for 3-point hitch, external hydraulics (e.g., for loaders, implements)
Wheelbase:
Refer to manual for exact dimensions, but typically around 80-90 inches
Length:
Refer to manual for exact dimensions
Width:
Refer to manual for exact dimensions
Operating Weight:
Estimated 5,000 - 6,000 lbs (without ballast)
Engine Oil Change:
Typically every 250-500 operating hours or annually, consult manual for exact intervals and oil type
Air Filter Service:
Regular inspection and cleaning, replacement based on operating conditions
Hydraulic Fluid Change:
Typically every 1000-2000 operating hours or as recommended by fluid manufacturer
Engine Oil:
API CD or higher, SAE 15W-40 or 30 (check manual for specific grade based on temperature)
Hydraulic Fluid:
Hydraulic Transmission Fluid (HTF) or suitable Universal Tractor Transmission Oil (UTTO) with good viscosity stability and anti-wear properties
Coolant:
Ethylene glycol-based antifreeze with water, typically a 50/50 mix
Common Wear Items:
Clutch wear, hydraulic pump efficiency, PTO clutch packs, front axle kingpins, exhaust manifold leaks
Potential Electrical:
Wiring harness degradation, starter solenoid issues
Manufacturer:
David Brown Tractors Ltd., formerly of Meltham, Yorkshire, England
Ownership:
Acquired by Tenneco in 1970, later integrated with Case IH
Series:
Part of the David Brown 1200 series and subsequent advanced models
Production Years:
Likely produced in the late 1970s to early 1980s